Siemens Simatic Ident Function Manual page 100

Setting parameters for blocks
3.5 Programming the Ident profile
The "PHYSICAL-WRITE" command
The optical reader systems MV400/MV500 have further commands that can be transferred
with the "PHYSICAL-WRITE" command.
Table 3- 78 PHYSICAL-WRITE
CMD OFFSET ADDR_TA
BUFFER G
0x71 Offset in 0x0000
the
"TXREF"
send
buffer
Table 3- 79
Address
0x0000
0x0001
Table 3- 80
Address
0x0000
100
LEN_DATA
Length of data to be sent to the read-
er:
0x02
•
0x01
•
Match string length + 3
•
0x01
•
0x01
•
0x01
•
Total length of the XMATCH user
•
data + 4
0x07
•
Command data area "TXREF" command identifier 0x01 (program change)
Value
0x01
0x00 ... 0x0F
Command data area "TXREF" command identifier 0x02 (activate read program number)
Value
0x02
TXREF
Sub command with data to be sent to the read-
er. The first "SINT" contains the command
identifier:
0x01 = Program change
•
0x02 = Activate read program number
•
0x03 = Write match string
•
0x04 = Activate read match string
•
0x05 = Set DISA bit
•
0x06 = Reset DISA bit
•
0x07 = Write trigger-synchronized match
•
string (XMATCH)
0x08 = Set Digital Out
•
Meaning
"Program change" command identifier
Number of the program
Meaning
"Read program number" command identifier
Ident profile and Ident blocks, standard function for Ident systems
Function Manual, 10/2018, C79000-G8976-C387-04